Dakota Agros Spatial Agronomy Engine

sUAS Stand-Gap & Physiological Yield Compensation Simulator

Conventional drone stand counts overestimate yield loss by assuming linear 1:1 stand-to-yield penalties. Grounded in published Red River Valley field research (Olson et al., 2024, Agronomy Journal), this workbench models neighbor-plant canopy plasticity across spatial gap topologies to determine when variable-rate replanting is economically justified.

Naive Linear Stand Estimate
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Uncorrected stand-ratio projection
Plasticity-Adjusted Yield
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Canopy compensation recovery
Net Replant Expected Value
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After seed, machine & phenology penalty
Agronomic Prescription
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Deterministic spatial threshold
Field & Flight Parameters
sUAS Orthomosaic Row-Segment Stand & Canopy Plasticity Map GSD: 0.85 cm/px | 6-Row Sub-Plot
Nominal Plant Centroid (1.00x head/biomass) Compensating Neighbor Plant (1.22x–1.48x head/biomass halo) Uncompensated Multi-Skip Gap Void
Yield Retention Curve Across Stand Reduction (Plasticity vs. Linear Assumption) Olson et al. (2024) Parameterization
Methodology Note: When intra-row skips occur as isolated 1- or 2-plant gaps in sunflower and branching row crops, flanking plants intercept additional photosynthetically active radiation (PAR) and soil moisture, increasing capitulum diameter and seed weight by $\alpha_1 \approx 28\text{--}38\%$. Uncompensated yield drag accelerates only when contiguous gap length $L_g$ exceeds the lateral root and canopy closure radius.